Date   

Re: Counterpoise question

radiojayallen
 

Actually, the CC Pocket and other earbud radios with no whip antenna use the earphone cord as an antenna, not a counterpoise.

Jay


Re: Counterpoise question

radiojayallen
 

A counterpoise or artificial ground can indeed enhance reception but is always trial and error as its effectiveness may vary from one situation to the next. To do this you need to access the radio's chassis ground which could usually be done most easily by connection to the shield (outer part) of the USB plug or headphone jack. You could also connect to the negative battery terminal but this is not always physically easy.

The counterpoise itself could be just a piece of wire and generally something perhaps 10 feet or so should be good but there is no real limit on this. This wire could just be layed on the floor but one question I have is have you tried an external antenna already?. You will probably get more boost by using a wire antenna...I would do that first, and the counterpoise secondly. This antenna could be a wire perhaps 20-30 feet long (such as one of those common reel-up antennas) clipped to the whip.

Jay


Re: What effect does full moon have on radio reception?

jcfontario
 

Auroras have a huge effect on AM reception. A simple google search will turn up lots of information.

j

On Wed, Aug 25, 2021 at 9:37 PM Paul Blundell <tanger32au@...> wrote:
Thanks Randy.

This person was interested in "What effect does the Northern and Southern light/aurora have on nighttime am reception?" My thoughts were not much but wanted to check before giving them the wrong information.

Paul

On Thu, Aug 26, 2021 at 10:48 AM Randy Barton W9RTB <siteinspect@...> wrote:

[Edited Message Follows]

Read about gray line propagation. 
Grey Line HF Radio Propagation » Electronics Notes (electronics-notes.com). Has nothing to do with the moon, but does explain the best time to RX signals.
Randy



--
Paul


Re: What effect does full moon have on radio reception?

Paul Blundell
 

Thanks Randy.

This person was interested in "What effect does the Northern and Southern light/aurora have on nighttime am reception?" My thoughts were not much but wanted to check before giving them the wrong information.

Paul

On Thu, Aug 26, 2021 at 10:48 AM Randy Barton W9RTB <siteinspect@...> wrote:

[Edited Message Follows]

Read about gray line propagation. 
Grey Line HF Radio Propagation » Electronics Notes (electronics-notes.com). Has nothing to do with the moon, but does explain the best time to RX signals.
Randy



--
Paul


Re: What effect does full moon have on radio reception?

Gary DeBock
 

On Wed, Aug 25, 2021 at 05:24 PM, Randy Barton W9RTB wrote:
Has nothing to do with the moon,
Randy is right-- the phases of the moon have nothing to do with AM radio reception.

If you think otherwise, that's OK, but please post your messages privately rather than discussing a useless topic on the group list.

Gary DeBock (in Puyallup, WA, USA)
Group Owner


Morning log 8.25.2021

Carl DeWhitt
 

WPTK 850 Raleigh,NC 0726-0729 UTC Oldies song." 104.7 FM -850 AM,Just Right Radio" Fair to Poor on barefoot C.Crane Skywave SSB. Carl DeWhitt,Knoxville,TN


Re: What effect does full moon have on radio reception?

 

I am still learning about this and a lot about radio in general. I don't know if it would have much impact but I would also love to know the answer.

 
 
Sent: Thursday, August 26, 2021 at 9:43 AM
From: "Paul Blundell" <tanger32au@...>
To: main@UltralightDX.groups.io
Subject: Re: [UltralightDX] What effect does full moon have on radio reception?
A question has come in via my blog, I don't know the answer:
"What effect does the Northern and Southern light/aurora have on nighttime am reception?"


Re: "Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video

 

I have heard a bit about him, does he post on here much or does he also have a webpage? How do you post something like this?

 
 
Sent: Wednesday, August 25, 2021 at 9:16 PM
From: "Gary DeBock via groups.io" <D1028Gary@...>
To: main@UltralightDX.groups.io
Subject: Re: [UltralightDX] "Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video
On Tue, Aug 24, 2021 at 09:03 PM, Paul Blundell wrote:
That is an awesome looking aerial and a great video, I am sure Paul will make good use of it.
Thanks Paul,

Paul W. has earned his DXing status the tough way, fighting subfreezing cold in order to explore breakthrough Arctic propagation. He deserves all the help he can get, and he should run wild again this winter.

Gary DeBock (in Puyallup, WA, USA)


Re: What effect does full moon have on radio reception?

Randy Barton W9RTB <siteinspect@...>
 
Edited

Read about gray line propagation. 
Grey Line HF Radio Propagation » Electronics Notes (electronics-notes.com). Has nothing to do with the moon, but does explain the best time to RX signals.
Randy


Re: What effect does full moon have on radio reception?

Paul Blundell
 

A question has come in via my blog, I don't know the answer:
"What effect does the Northern and Southern light/aurora have on nighttime am reception?"


Re: Counterpoise question

Paul Blundell
 

I am not sure how that would work but it is worth a try I guess.


On Wed, Aug 25, 2021 at 9:51 PM Jock Elliott <jock.elliott@...> wrote:
A technician at CCrane suggested that, if I wanted to squeeze more performance out of my Skywave SSB on the HF bands, I might consider attaching a counterpoise to the mini (or micro, not sure) USB port on the side of the radio. Buy a mini-USB cable and pull the center pin out of it, he said, and you are now grounded to the chassis of the radio.

Question: how long should the countpoise be? As long as the whip antenna? As long as any antenna attached to the whip?

Apologies in advance: my knowledge of antenna theory is so limited that "zero knowledge" would be an upgrade for me.



--
Paul


Re: [irca] TP/TA DX

Nick Hall-Patch
 

Have you had any luck with Turkey on 954, Paul?   That's made it into Victoria a couple of times.

Although 1215 is the "early warning" here, once things deepened a bit last season, Romania and Spain did reasonably well at times, as did the Egyptian on 864.  In midwinter,  Iran was possible with some effort, and on Iran's best nights, British stations weren't as noticeable, a bit more like what you've been finding in Alaska, perhaps.

Nick


At 19:16 2021-08-25, Paul B. Walker, Jr. wrote:


There's not a ton of similarity but some of TP/TA DX between me and the guys in western canada and some similarity between them and the east coast... and very little if any commonality between me and the east coast.  DXing in Alaska is a whole different world   My thoughts were shared here recently: https://swling.com/blog/2021/08/pauls-thoughts-about-mediumwave-dxing-in-alaska/

Even the guys in Vancouver/Victoria and other parts of western Canada get some smatterings of Absolute 1215khz and I know it's pretty common on the east coast.. at night. I've heard it a few very scant times, very weakly.

My most common on 1053 isn't Talk Sport but .. Romania. .and it has to fight with the 3rd harmonic of my local airport beacon, running 1kw on 350khz from 2 miles away. You can hear Romania quite clearly in this clip..... with the VTR beacon underneath and a whine for someone off frequency. https://drive.google.com/file/d/1f20j8OIYIcTvWt2IEwRR7R5FwhO9K_Ep/view?usp=sharing

My most common 1089 is Talk Sport and its not that common, because it has to fight with XEPRS Tee-huh-wanna before sunrise. One day Talk Sport 1089 was bombing in like a local for 15 minutes. Audio: https://drive.google.com/file/d/1h0qOCPxIr4srPPoF1DvwFtT6Iyrid3mk/view?usp=sharing

I've heard romania on 1179khz a few times as well. 

Two of my surprising semi regulars were Iran on 1026 and turkey, with awful audio, on 1062khz.

One of my surprises was the 20kw Radio Dechovka from the Czech Republic on 1233. Kinda weak and noisy but good on fade ups here: https://drive.google.com/file/d/1oq1ZkeXjoONPRU9-ChSJpg5LByawIn7_/view?usp=sharing

Paul 



_._,_._,_
Nick Hall-Patch
Victoria, BC
Canada


TP/TA DX

Paul B. Walker, Jr.
 

There's not a ton of similarity but some of TP/TA DX between me and the guys in western canada and some similarity between them and the east coast... and very little if any commonality between me and the east coast.  DXing in Alaska is a whole different world   My thoughts were shared here recently: https://swling.com/blog/2021/08/pauls-thoughts-about-mediumwave-dxing-in-alaska/

Even the guys in Vancouver/Victoria and other parts of western Canada get some smatterings of Absolute 1215khz and I know it's pretty common on the east coast.. at night. I've heard it a few very scant times, very weakly.

My most common on 1053 isn't Talk Sport but .. Romania. .and it has to fight with the 3rd harmonic of my local airport beacon, running 1kw on 350khz from 2 miles away. You can hear Romania quite clearly in this clip..... with the VTR beacon underneath and a whine for someone off frequency. https://drive.google.com/file/d/1f20j8OIYIcTvWt2IEwRR7R5FwhO9K_Ep/view?usp=sharing

My most common 1089 is Talk Sport and its not that common, because it has to fight with XEPRS Tee-huh-wanna before sunrise. One day Talk Sport 1089 was bombing in like a local for 15 minutes. Audio: https://drive.google.com/file/d/1h0qOCPxIr4srPPoF1DvwFtT6Iyrid3mk/view?usp=sharing

I've heard romania on 1179khz a few times as well.  

Two of my surprising semi regulars were Iran on 1026 and turkey, with awful audio, on 1062khz.

One of my surprises was the 20kw Radio Dechovka from the Czech Republic on 1233. Kinda weak and noisy but good on fade ups here: https://drive.google.com/file/d/1oq1ZkeXjoONPRU9-ChSJpg5LByawIn7_/view?usp=sharing

Paul  



Re: Counterpoise question

kevin asato
 

The CC Pocket does something similar with FM reception. They either use the headphones or a special lead to the ground side of the headphone jack as a counterpoise. It definitely does aid RM reception; not sure how it would enhance HF bands as it have to be considerably longer to be effective. The enclosed counterpoise is 31" long which is about right for the FM broadcast band. I cut off the encapsulated end of the counterpoise and added an alligator clip to extend as required. You may need to do something similar.
73,
kevin
kc6pob

On Wed, Aug 25, 2021 at 9:31 AM Michael.2E0IHW via groups.io <blumu=btinternet.com@groups.io> wrote:

Jock,



A counterpoise some distance from the house will help close to  its natural frequency.
It can, however, be tuned like an "earth tuner" to cover a wide band of frequencies.
This may or may not help, as it might "attract" noise from nearby appliances.

Also, it will introduce imbalance as the telescopic antenna would remain "untuned".

Look for "earth tuner" on the dreaded web and experiment!

The best solution  remains the FSL optio reception  for medium-wave
and a tuned frame-aerial for shortwave.+

Michael UK



On 25/08/2021 12:51, Jock Elliott wrote:
A technician at CCrane suggested that, if I wanted to squeeze more performance out of my Skywave SSB on the HF bands, I might consider attaching a counterpoise to the mini (or micro, not sure) USB port on the side of the radio. Buy a mini-USB cable and pull the center pin out of it, he said, and you are now grounded to the chassis of the radio.

Question: how long should the countpoise be? As long as the whip antenna? As long as any antenna attached to the whip?

Apologies in advance: my knowledge of antenna theory is so limited that "zero knowledge" would be an upgrade for me.


Re: Counterpoise question

Michael.2E0IHW
 


Jock,



A counterpoise some distance from the house will help close to  its natural frequency.
It can, however, be tuned like an "earth tuner" to cover a wide band of frequencies.
This may or may not help, as it might "attract" noise from nearby appliances.

Also, it will introduce imbalance as the telescopic antenna would remain "untuned".

Look for "earth tuner" on the dreaded web and experiment!

The best solution  remains the FSL optio reception  for medium-wave
and a tuned frame-aerial for shortwave.+

Michael UK



On 25/08/2021 12:51, Jock Elliott wrote:
A technician at CCrane suggested that, if I wanted to squeeze more performance out of my Skywave SSB on the HF bands, I might consider attaching a counterpoise to the mini (or micro, not sure) USB port on the side of the radio. Buy a mini-USB cable and pull the center pin out of it, he said, and you are now grounded to the chassis of the radio.

Question: how long should the countpoise be? As long as the whip antenna? As long as any antenna attached to the whip?

Apologies in advance: my knowledge of antenna theory is so limited that "zero knowledge" would be an upgrade for me.


Counterpoise question

Jock Elliott
 

A technician at CCrane suggested that, if I wanted to squeeze more performance out of my Skywave SSB on the HF bands, I might consider attaching a counterpoise to the mini (or micro, not sure) USB port on the side of the radio. Buy a mini-USB cable and pull the center pin out of it, he said, and you are now grounded to the chassis of the radio.

Question: how long should the countpoise be? As long as the whip antenna? As long as any antenna attached to the whip?

Apologies in advance: my knowledge of antenna theory is so limited that "zero knowledge" would be an upgrade for me.


Re: "Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video

Gary DeBock
 

On Tue, Aug 24, 2021 at 09:03 PM, Paul Blundell wrote:
That is an awesome looking aerial and a great video, I am sure Paul will make good use of it.
Thanks Paul,

Paul W. has earned his DXing status the tough way, fighting subfreezing cold in order to explore breakthrough Arctic propagation. He deserves all the help he can get, and he should run wild again this winter.

Gary DeBock (in Puyallup, WA, USA)


Re: "Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video

Paul Blundell
 

That is an awesome looking aerial and a great video, I am sure Paul will make good use of it.


On Wed, Aug 25, 2021 at 10:58 AM Gary DeBock via groups.io <D1028Gary=aol.com@groups.io> wrote:
For those who need an extremely rugged FSL antenna that can survive the nastiest environments (subfreezing Alaska cold, windstorm-pounded ocean side cliffs or the Kabul, Afghanistan airport) an extremely rugged FSL antenna version has been designed. Every ferrite rod is superglued to the rubber plumbing coupler, which is then superglued to the PVC frame with a specially designed rubber locking tab. The entire antenna was designed to be "bulletproof," and is demonstrated in the video linked below. Two of these models are on their way to Paul, who should have some serious fun with them this winter  (10) "Paul Walker Variant" 5 inch (12.7cm) FSL Antenna - YouTube

73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)



--
Paul


Logs for 8.24.2021

Carl DeWhitt
 

KFUO 850 Clayton,MO 2100-2101 EDT.     Good news on KFUO and worldwide on  kfuo.org.Fair.C.Crane Skywave SSB barefoot.                                                              WVLK 590 Lexington,KY 2205-2208 EDT.local news and weather." 97.3 WVLK" ID.Poor-fair.C.Crane Skywave SSB barefoot. Carl DeWhitt,Knoxville,TN


"Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video

Gary DeBock
 

For those who need an extremely rugged FSL antenna that can survive the nastiest environments (subfreezing Alaska cold, windstorm-pounded ocean side cliffs or the Kabul, Afghanistan airport) an extremely rugged FSL antenna version has been designed. Every ferrite rod is superglued to the rubber plumbing coupler, which is then superglued to the PVC frame with a specially designed rubber locking tab. The entire antenna was designed to be "bulletproof," and is demonstrated in the video linked below. Two of these models are on their way to Paul, who should have some serious fun with them this winter  (10) "Paul Walker Variant" 5 inch (12.7cm) FSL Antenna - YouTube

73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)

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